• Installation procedure
• VRV
®
Systems • Installation procedure
12
1
Installation of outdoor
1 - 7 Field wiring
C
AUTION
All field wiring and components must be installed by a licensed electrician and must comply with relevant local and national regulations.
The field wiring must be carried out in accordance with the wiring diagrams and the instructions given below.
Be sure to use a dedicated power circuit. Never use a power supply shared by another appliance.
Do not operate until refrigerant piping work is completed.
(If operated before complete the piping work, the compressor may be broken down.)
Never remove thermistor, sensor or etc. when connecting power wiring and transmission wiring.
(If operated with thermistor, sensor or etc. removed, the compressor may be broken down.)
Be sure to install an earth leak detector.
(This unit uses an inverter, so install the earth leak detector that be capable of handling high harmonics in order to prevent malfunctioning of the
earth leak detector itself.)
This product have reversed phase protection detector that only works when the product started up.
Do not run the unit by short cutting the protection device (S1PH).
If there exists the possibility of reversed phase, lose phase, momentary black out or the power goes on and off while the product is operating, attach
a reversed phase protection circuit locally. Running the product in reversed phase may break the compressor and other parts.
Attach the power wire securely.
Introducing power with a missing N-phase or with a mistaken N-phase will break the equipment.
1 - 7 - 1
Optional parts
COOL/HEAT Selector
S1S...............................Selector switch (fan, cool/heat), S2S...............................Selector switch (cool/heat)
N
OTES
1
When using the adaptor for sequential start, refer to chapter “Examples”.
2
For connection wiring to the central remote controller, refer to the installation manual of the central remote controller.
1 - 7 - 2
Power circuit and cable requirements
A power circuit (see table below) must be provided for connection of the unit. This circuit must be protected with the required safety devices, i.e. a main
switch, a slow blow fuse on each phase and an earth leak detector.
When using residual current operated circuit breakers, be sure to use a high-speed type 200mA rated residual operating current.
N
OTES
1
Use copper conductors only.
2
Use insulated wire for the power cord.
3
Select the power supply cable in accordance with relevant local and national regulations.
4
Wire size must comply with the applicable local and national code.
5
Specifications for local wiring power cord and branch wiring are in compliance with IEC60245.
6
WIRE TYPE H05VV(*)
*Only in protected pipes, use H07RN-F when protected pipes are not used.
Phase and frequency
Voltage
Minimum circuit amp.
Recommended fuses
Transmission line selection
FXYCP10MY1
ø 3, 50Hz
380 - 415V
12.6A
25A
0.75 - 1.25mm
2
FXYCP20MY1
ø 3, 50Hz
380 - 415V
25.3A
35A
0.75 - 1.25mm
2
FXYCP30MY1
ø 3, 50Hz
380 - 415V
37.9A
45A
0.75 - 1.25mm
2
